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A091028
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Alternating row sums of array A090440 (generalized Stirling2 array (4,3)).
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2
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1, -1, -299, 40751, 5067841, -7323445921, -999631061099, 8071239253153439, 3226932423143680609, -35637793578511857426241, -56681720635442893862661899, 428341845237867375193339807439, 2249822227541602344980346463546081
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OFFSET
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1,3
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LINKS
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FORMULA
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a(n)=-sum(((-1)^k)*A090440(n, k), k=3..3*n), n>=1.
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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STATUS
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approved
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